mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
fa97004faf
Implement linux port layer and reuse the original FreeRTOS layer that's compiled and used on linux target as well, by means of FreeRTOS simulator.
273 lines
8.3 KiB
C
273 lines
8.3 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include "lwip_default_hooks.h"
|
|
#include "lwip/prot/dhcp.h"
|
|
#include "lwip/dhcp.h"
|
|
#include "lwip/prot/iana.h"
|
|
#include <string.h>
|
|
|
|
#define __weak __attribute__((weak))
|
|
|
|
#ifdef CONFIG_LWIP_HOOK_IP6_ROUTE_DEFAULT
|
|
struct netif *__weak
|
|
lwip_hook_ip6_route(const ip6_addr_t *src, const ip6_addr_t *dest)
|
|
{
|
|
LWIP_UNUSED_ARG(src);
|
|
LWIP_UNUSED_ARG(dest);
|
|
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_DEFAULT
|
|
int __weak lwip_hook_netconn_external_resolve(const char *name, ip_addr_t *addr, u8_t addrtype, err_t *err)
|
|
{
|
|
LWIP_UNUSED_ARG(name);
|
|
LWIP_UNUSED_ARG(addr);
|
|
LWIP_UNUSED_ARG(addrtype);
|
|
LWIP_UNUSED_ARG(err);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_LWIP_HOOK_ND6_GET_GW_DEFAULT
|
|
const ip6_addr_t *__weak lwip_hook_nd6_get_gw(struct netif *netif, const ip6_addr_t *dest)
|
|
{
|
|
LWIP_UNUSED_ARG(netif);
|
|
LWIP_UNUSED_ARG(dest);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_LWIP_HOOK_IP6_INPUT_DEFAULT
|
|
int __weak lwip_hook_ip6_input(struct pbuf *p, struct netif *inp)
|
|
{
|
|
LWIP_UNUSED_ARG(p);
|
|
LWIP_UNUSED_ARG(inp);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef LWIP_HOOK_IP4_ROUTE_SRC
|
|
#if ESP_IP4_ROUTE
|
|
#include "lwip/netif.h"
|
|
|
|
bool ip4_netif_exist(const ip4_addr_t *src, const ip4_addr_t *dest)
|
|
{
|
|
struct netif *netif = NULL;
|
|
|
|
for (netif = netif_list; netif != NULL; netif = netif->next) {
|
|
/* is the netif up, does it have a link and a valid address? */
|
|
if (netif_is_up(netif) && netif_is_link_up(netif) && !ip4_addr_isany_val(*netif_ip4_addr(netif))) {
|
|
/* source netif and dest netif match? */
|
|
if (ip4_addr_netcmp(src, netif_ip4_addr(netif), netif_ip4_netmask(netif)) || ip4_addr_netcmp(dest, netif_ip4_addr(netif), netif_ip4_netmask(netif))) {
|
|
/* return false when both netif don't match */
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Source based IPv4 routing hook function.
|
|
*/
|
|
struct netif *
|
|
ip4_route_src_hook(const ip4_addr_t *src,const ip4_addr_t *dest)
|
|
{
|
|
struct netif *netif = NULL;
|
|
|
|
/* destination IP is broadcast IP? */
|
|
if ((src != NULL) && !ip4_addr_isany(src)) {
|
|
/* iterate through netifs */
|
|
for (netif = netif_list; netif != NULL; netif = netif->next) {
|
|
/* is the netif up, does it have a link and a valid address? */
|
|
if (netif_is_up(netif) && netif_is_link_up(netif) && !ip4_addr_isany_val(*netif_ip4_addr(netif))) {
|
|
/* source IP matches? */
|
|
if (ip4_addr_cmp(src, netif_ip4_addr(netif))) {
|
|
/* return netif on which to forward IP packet */
|
|
|
|
return netif;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return netif;
|
|
}
|
|
#endif
|
|
#endif /* LWIP_HOOK_IP4_ROUTE_SRC */
|
|
|
|
#define LWIP_DHCP_ENABLE_MTU_UPDATE 1
|
|
#define LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS !ESP_DHCP_DISABLE_VENDOR_CLASS_IDENTIFIER
|
|
#define LWIP_DHCP_ENABLE_CLIENT_ID !ESP_DHCP_DISABLE_CLIENT_ID
|
|
|
|
#if LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS
|
|
#define DHCP_OPTION_VSI 43
|
|
#define DHCP_OPTION_VCI 60
|
|
#define DHCP_OPTION_VSI_MAX 16
|
|
|
|
static u8_t vendor_class_len = 0;
|
|
static char *vendor_class_buf = NULL;
|
|
static u32_t dhcp_option_vsi[DHCP_OPTION_VSI_MAX] = {0};
|
|
|
|
void dhcp_free_vendor_class_identifier(void)
|
|
{
|
|
mem_free(vendor_class_buf);
|
|
}
|
|
|
|
int dhcp_get_vendor_specific_information(uint8_t len, char * str)
|
|
{
|
|
u8_t copy_len = 0;
|
|
|
|
if (len == 0 || str == NULL) {
|
|
return ERR_ARG;
|
|
}
|
|
|
|
copy_len = LWIP_MIN(len, sizeof(dhcp_option_vsi));
|
|
|
|
memcpy(str, dhcp_option_vsi, copy_len);
|
|
|
|
return ERR_OK;
|
|
}
|
|
|
|
int dhcp_set_vendor_class_identifier(uint8_t len, const char * str)
|
|
{
|
|
if (len == 0 || str == NULL) {
|
|
return ERR_ARG;
|
|
}
|
|
|
|
if (vendor_class_buf && vendor_class_len != len) {
|
|
mem_free(vendor_class_buf);
|
|
vendor_class_buf = NULL;
|
|
}
|
|
|
|
if (!vendor_class_buf) {
|
|
vendor_class_buf = (char *)mem_malloc(len + 1);
|
|
if (vendor_class_buf == NULL) {
|
|
return ERR_MEM;
|
|
}
|
|
|
|
vendor_class_len = len;
|
|
}
|
|
|
|
memcpy(vendor_class_buf, str, len);
|
|
return ERR_OK;
|
|
}
|
|
#endif /* LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS */
|
|
|
|
void dhcp_parse_extra_opts(struct dhcp *dhcp, uint8_t state, uint8_t option, uint8_t len, struct pbuf* p, uint16_t offset)
|
|
{
|
|
LWIP_UNUSED_ARG(dhcp);
|
|
LWIP_UNUSED_ARG(state);
|
|
LWIP_UNUSED_ARG(option);
|
|
LWIP_UNUSED_ARG(len);
|
|
LWIP_UNUSED_ARG(p);
|
|
LWIP_UNUSED_ARG(offset);
|
|
#if LWIP_DHCP_ENABLE_MTU_UPDATE
|
|
if ((option == DHCP_OPTION_MTU) &&
|
|
(state == DHCP_STATE_REBOOTING || state == DHCP_STATE_REBINDING ||
|
|
state == DHCP_STATE_RENEWING || state == DHCP_STATE_REQUESTING)) {
|
|
u32_t mtu = 0;
|
|
struct netif *netif;
|
|
LWIP_ERROR("dhcp_parse_extra_opts(): MTU option's len != 2", len == 2, return;);
|
|
LWIP_ERROR("dhcp_parse_extra_opts(): extracting MTU option failed",
|
|
pbuf_copy_partial(p, &mtu, 2, offset) == 2, return;);
|
|
mtu = lwip_htons((u16_t)mtu);
|
|
NETIF_FOREACH(netif) {
|
|
/* find the netif related to this dhcp */
|
|
if (dhcp == netif_dhcp_data(netif)) {
|
|
if (mtu < netif->mtu) {
|
|
netif->mtu = mtu;
|
|
LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_parse_extra_opts(): Negotiated netif MTU is %d\n", netif->mtu));
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
} /* DHCP_OPTION_MTU */
|
|
#endif /* LWIP_DHCP_ENABLE_MTU_UPDATE */
|
|
#if LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS
|
|
if ((option == DHCP_OPTION_VSI) &&
|
|
(state == DHCP_STATE_REBOOTING || state == DHCP_STATE_REBINDING ||
|
|
state == DHCP_STATE_RENEWING || state == DHCP_STATE_REQUESTING || state == DHCP_STATE_SELECTING)) {
|
|
u8_t n;
|
|
u32_t value;
|
|
u16_t copy_len;
|
|
for (n = 0; n < DHCP_OPTION_VSI_MAX && len > 0; n++) {
|
|
copy_len = LWIP_MIN(len, 4);
|
|
LWIP_ERROR("dhcp_parse_extra_opts(): extracting VSI option failed",
|
|
pbuf_copy_partial(p, &value, copy_len, offset) == copy_len, return;);
|
|
dhcp_option_vsi[n] = lwip_htonl(value);
|
|
len -= copy_len;
|
|
}
|
|
} /* DHCP_OPTION_VSI */
|
|
#endif /* LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS */
|
|
}
|
|
|
|
void dhcp_append_extra_opts(struct netif *netif, uint8_t state, struct dhcp_msg *msg_out, uint16_t *options_out_len)
|
|
{
|
|
LWIP_UNUSED_ARG(netif);
|
|
LWIP_UNUSED_ARG(state);
|
|
LWIP_UNUSED_ARG(msg_out);
|
|
LWIP_UNUSED_ARG(options_out_len);
|
|
#if LWIP_DHCP_ENABLE_CLIENT_ID
|
|
if (state == DHCP_STATE_RENEWING || state == DHCP_STATE_REBINDING ||
|
|
state == DHCP_STATE_REBOOTING || state == DHCP_STATE_OFF ||
|
|
state == DHCP_STATE_REQUESTING || state == DHCP_STATE_BACKING_OFF || state == DHCP_STATE_SELECTING) {
|
|
size_t i;
|
|
u8_t *options = msg_out->options + *options_out_len;
|
|
LWIP_ERROR("dhcp_append(client_id): options_out_len + 3 + netif->hwaddr_len <= DHCP_OPTIONS_LEN",
|
|
*options_out_len + 3U + netif->hwaddr_len <= DHCP_OPTIONS_LEN, return;);
|
|
*options_out_len = *options_out_len + netif->hwaddr_len + 3;
|
|
*options++ = DHCP_OPTION_CLIENT_ID;
|
|
*options++ = netif->hwaddr_len + 1; /* option size */
|
|
*options++ = LWIP_IANA_HWTYPE_ETHERNET;
|
|
for (i = 0; i < netif->hwaddr_len; i++) {
|
|
*options++ = netif->hwaddr[i];
|
|
}
|
|
}
|
|
#endif /* LWIP_DHCP_ENABLE_CLIENT_ID */
|
|
#if LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS
|
|
if (state == DHCP_STATE_RENEWING || state == DHCP_STATE_REBINDING ||
|
|
state == DHCP_STATE_REBOOTING || state == DHCP_STATE_OFF ||
|
|
state == DHCP_STATE_REQUESTING || state == DHCP_STATE_BACKING_OFF || state == DHCP_STATE_SELECTING) {
|
|
size_t i;
|
|
const char *p = NULL;
|
|
u8_t len = 0;
|
|
|
|
if (vendor_class_buf && vendor_class_len) {
|
|
p = vendor_class_buf;
|
|
len = vendor_class_len;
|
|
} else {
|
|
#if LWIP_NETIF_HOSTNAME
|
|
size_t namelen;
|
|
if (netif->hostname != NULL && (namelen = strlen(netif->hostname)) < 0xff) {
|
|
p = netif->hostname;
|
|
len = (u8_t)namelen;
|
|
}
|
|
#endif /* LWIP_NETIF_HOSTNAME */
|
|
}
|
|
LWIP_ERROR("dhcp_append(vci): options_out_len + 3 + vci_size <= DHCP_OPTIONS_LEN",
|
|
*options_out_len + 3U + len <= DHCP_OPTIONS_LEN, return;);
|
|
if (p) {
|
|
u8_t *options = msg_out->options + *options_out_len;
|
|
*options_out_len = *options_out_len + len + 3;
|
|
*options++ = DHCP_OPTION_VCI;
|
|
*options++ = len;
|
|
for (i = 0; i < len; i ++) {
|
|
*options++ = p[i];
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
#endif /* LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS */
|
|
|
|
}
|